A mishandling of perspective unintentionally gives it a funhouse quality. If you dropped a marble on the floor, it looks like it would roll off to the right.
The problem is that it goes into two point perspective when it should be treated as a one-point perspective picture.
A basic rule of thumb is that if the main vanishing point is within the central third of the picture, the other set of lines should stay horizontal. If that distant vanishing point were placed way over near the side of the picture, the lines in the floor and the window mullions could begin to slant a bit.
